交配

There are many factors that will affect genetic diversity of pines,in which mating system and environment are two main factors.

影响遗传多样性的因素很多，其中自身的交配系统和外部的生长环境是影响它的两个主要因素。

On our program this week, we will tell about an animal that can reproduce without mating.

在本周的节目里，我们会向您介绍一种不需要交配便可以繁殖的动物。

At the same time, however, it causes the body to reduce testosterone and other hormones that motivate mating behavior.

在同一时间内，不过，身体的原因，以减少睾酮和其他激素激发交配行为。

And this is 1 of 5 silky sacs she'll produce from this particular mating.

而这只是她在这次交配中产下的 5 个丝囊之一。

You need to find as many prospective homes as possible for your babies before the mating takes place.

在你让小熊交配之前，你必须尽可能多的找到一些愿意收养他们的人。

The invention discloses a method for cultivating river crab, comprising the following steps: choosing China crab as parent crab, temporary culturing female and male crab separately, then mating; culturing the crab with ovum at temperature under 5 Deg C for more than 2 months; the crab with ovum producing out ovum and the ovum growing into flea larval, megalops larva, young crab, crab strain and adult crab.

本发明是河蟹的养殖方法，包括以下步骤：选择长江系中华绒螯蟹为亲蟹，将雌雄亲蟹分开进行暂养后，进行交配；对抱卵蟹在水温5℃以下饲养2个月以上；抱卵蟹产出卵，生成蚤状幼体，长成大眼幼体；在经仔蟹，长成幼蟹、蟹种再到成蟹。

In this study, the fine structures of chorion, micropyle, sperm entry site and plasma surface of its eggs were observed by SEM and TEM.

用扫描和透射电子显微镜观察了天然三倍体萍乡肉红鲫成熟卵子卵壳、受精孔、精子进入区以及卵子质膜表面的细微结构，观察了两种不同交配组合：萍乡肉红鲫萍乡肉红鲫与萍乡肉红鲫♀兴国红鲤♂的受精早期精子入卵的时序。

During this single day, they molt twice, mate, and lay eggs in water.

在这一天中它要蜕两次皮，交配，在水中产卵。

During thissingle day, they molt twice, mate, and lay eggs in water.

在这一天中它要蜕两次皮，交配，在水中产卵。

A single lens in a pair of glasses;a monocle.

单片眼镜一对眼镜片中的一个单透镜；单片眼镜鸟在春天交配筑窠。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。